Bottom Line

Unfortunately, we didn't have the chance to test the 750 G3 so that I couldn't make any comparison between this unit and the 750 G5. Nonetheless, I included in the comparison charts the Super Flower SF-750F14HG which uses the Leadex III platform (the 750 G3 is based on the Leadex II design), so you can have an idea on the performance difference between the 750 G3 and G5 models.

I don't approve the use of an ACRF topology (you will find more details on this topology by following this link) in this category, from the moment the competition uses superior designs featuring half-bridge (Corsair RM750x and RM750) and full-bridge topologies (Seasonic Focus Plus Gold). This topology is only suitable for budget PSUs, since it requires fewer components of lower cost and it lowers the capacity requirements of the bulk cap, which is among the most expensive parts in a power supply. The 750 G5 uses quality components, and its build quality is high, but its design doesn't allow it to effectively meet the competition in the 750W category. The transient response is one of the most important factors in a PSU's performance since it depicts its operation under real-life conditions where the loads are dynamic and not static. In such scenarios, the G5 cannot keep the +12V deviations within 1%, and the 3.3V rail's transient response is terrible. So although the 750 G5 has tight load regulation and good enough ripple suppression along with a long hold-up time, still it cannot meet the overall performance of any of the aforementioned models.

Super Flower's Leadex II platform, used in the all G3 models, is still a great performer but because of tariff considerations, that line is on the way out. If you want a high-performance PSU, you should try to get one of the G3 models that are still available in the stores. Till the G3 stock clears out, there is no point in preferring a G5 unit. Even when all G3s are gone, there are better options than the G5 (e.g., the Corsair RMx and Seasonic Focus Plus Gold models). Hopefully, EVGA will push FSP to use a different platform in an upcoming G line, or even better Super Flower will move some of its production out of China, and we will see again a Leadex-based G line.

Disclaimer: Aris Mpitziopoulos is Tom's Hardware's PSU reviewer. He is also the Chief Testing Engineer of Cybenetics, and developed the Cybenetics certification methodologies apart from his role on Tom's Hardware. Neither Tom's Hardware nor its parent company, Future PLC, are financially involved with Cybenetics. Aris does not perform the actual certifications for Cybenetics.

Hello Aris , you still recommened the g3 ? , beacuse aparently is in tier Tier D - Not recommended https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/ , beacuse of OPP , the 850 g3 is good PSU for high end PC gaming ?

Hello Aris , you still recommened the g3 ? , beacuse aparently is in tier Tier D - Not recommended https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/ , beacuse of OPP , the 850 g3 is good PSU for high end PC gaming ?

Hello Aris , you still recommened the g3 ? , beacuse aparently is in tier Tier D - Not recommended https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/ , beacuse of OPP , the 850 g3 is good PSU for high end PC gaming ?

linus forums are spreading fear mongering. they use toms own reviews about the G3 series as their reasoning while simultaneously ignoring toms still recommendation for it IN THOSE SAME REVIEWS. they all of a sudden don't care about the authors opinion. they pick and choose what they want to hear and spread misinformation and instill paranoia and fear mongering into people. and also flat-out ignore jonnyguru reviews for it as well. while simultaneously using jonny's reviews for recommending other power supplies.

do yourself a favor and ignore that dumb list. the guy who took control of it is going on a fear mongering spree and has admitted hes basing everything off his own opinion rather than facts. he doesn't like single rails and telling people single rails will blow up on them if you use them in units past 600 watts or so. he's not correcting users going around on that forum stating single rails don't support ocp / opp. he's spreading misinformation about a plethora of power supplies, hes ranking power supplies that are objectively worse over nitpicking stuff. like the g3 opp that's only a concern if you ARE ALREADY PUSHING THE POWER SUPPLY BEYOND ITS RATED SPEC NO MATTER WHAT EVEN WITH GOOD OPP YOU WILL STILL HAVE PROBLEMS IN THOSE SCENARIOS OVER TIME OF CONSTANT PUSHING OVER SPEC.

sorry for my rant but linus power supply tier has been the worse thing to come about in the community.

The criticism regarding transient response is flawed in that it is not tested the way that people are actually going to use the things, ie with the caps in place.

While I'm sure no one is stamping an official seal of approval on PSUs, I'd imagine they'd be ripped on pretty hard if it didn't actually adhere to ATX specifications.

Evga's marketing wank goes on about the higher quality capacitors on the output board. A more useful test, IMO, would be to test that transient response under conditions that people are actually using the thing. Given that it only slightly failed this testing methodology without the caps, I'm left to believe that it would do just fine tested in a real world situation.